[Stoves] Major case study about TLUD stoves

Sun Oct 2 20:22:26 CDT 2016

Dear Tony and Alex and All

Attached is a set of diagrams that show where the heat goes in a couple of different types of stoves.

This is taken from a presentation made on behalf of the SeTAR Centre at CAU in October 2014 at the S4G Conference.

It doesn’t try to present all the information with a single diagram – you can imagine one stacked on top of another. They are presented for different conditions: cold pot, hot pot, and char-making etc.

The numbers are imaginary but reasonably for actual stoves. There is a question for the reader on what would make the ‘right’ efficiency metric.

Regards

Crispin

I could imagine a Sankey diagram for a stove with variable qualities of fuel, environment, and pots on top could end up being quite complex, but it could be a great way to visualise the impact of various 'key' parameters and features, especially if it looks at more than just the stove and fuel but includes the growing, collecting, preparing, using and maintaining and replacing of the fuel.

If anyone had even a stab at compiling such a  chart it would be great to have as a reference or discussion document.
Please do post something if you have tried.

This report from India is excellent, many thanks for sharing.

Tony Vovers

On 2 Oct 2016 10:44 p.m., "Crispin Pemberton-Pigott" <crispinpigott at outlook.com <mailto:crispinpigott at outlook.com> > wrote:

Alex that is a great idea. 

I have wondered for years if this was going to make it to market and prepared a little for it. I have a proposed method for calculation the performance of a pair of stoves using the fuel in a chain. 

The implementation is the substitution of charcoal for coke‎ which is perfectly sound from a manufacturing point of view. A lot of the Eastern USA forests were made into charcoal for steel production. It is not everywhere this setup can work. 

A faint glimmer ‎shone in Tajikistan last week when it became clear that one of the fuels available is a high energy coal with enough volatiles to light easily. In a TLUD if burns off the volatiles and goes out, basically. What is left is high energy coke. 

Unfortunately the source is a mine that doesn't wash or grade the product. It is too stony to sell. Too unreliable. But it remains a possibility in other circumstances. 

Regards 

Crispin 

PS I will find one of the diagrams as a reminder of the energy flow concept. 

Paul, 

Thanks. I would encourage you, or perhaps a third party less invested researcher, to produce a Sankey diagram 

 ( https://en.wikipedia.org/wiki/Sankey_diagram ) of the Champion stove and the entire energy system around it that you have introduced into the Deganga area. It can be included as part of a life cycle assement. It won't cover social impacts but it summarizes data at a glance

Crispin did this for some tested stoves. I hope he posts a link to them again.

Alex

On Sat, Oct 1, 2016 at 10:03 PM, Paul Anderson <psanders at ilstu.edu <mailto:psanders at ilstu.edu> > wrote:

see below

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu <mailto:psanders at ilstu.edu> 
Skype:   paultlud    Phone: +1-309-452-7072 <tel:%2B1-309-452-7072> 
Website:  www.drtlud.com <http://www.drtlud.com> 

On 10/1/2016 8:00 PM, alex english wrote:

Paul,
It is good to see this report. You have persevered. 

The charcoal was purchased back for 12 cents/kg. What happened to it next?  Was it used in the form it was produced? 

I do not know about the form.  Some might be briquetted.  But it was sold to restaurants and small industry for burning.

If these homes wanted to buy charcoal what would it cost? 

NOT available for purchase by the households.   Carbon credit agreement requires that it be used to replace traditionally made charcoal.

Did this new supply have any change the local market price?

I do not know.   I will try to have more answers in the follow-up article about 2016 activities / expansions.

I hope that some other locations will be interested in some similar locally-focused TLUD stove projects.

Paul

Congratulations.
Alex

On Sep 30, 2016 11:45 PM, "Paul Anderson" <psanders at ilstu.edu <mailto:psanders at ilstu.edu> > wrote:

Dear all,

Four co-authors have written an detailed article about a highly successful and on-going TLUD gasifier stove project in Deganga, an area of the Ganges Delta in India.  Please read it, share it with others, and give consideraton about how you and your projects might build upon the lessons learned.

Case Study of Acceptance of Champion TLUD Gasifier Stoves

in the Deganga Area, Ganges Delta, India

[Data as of early 2016; released in September 2016]

On the Internet at:   http://drtlud.com/deganga-tlud-project-2016
And attached as a .pdf file.

Summary:    

                With field data to document earlier challenges and current success, as of early 2016 the Deganga TLUD Project in the Ganges Delta has over 11,000 Champion micro-gasifier stoves in a small rural area.  In seven villages, between 25% and 40% of households have adopted the stove.  Factors contributing to the success include funding via carbon offsets, attaining critical mass of households, adequate supplies of appropriate fuel, fuel cost savings, installment payments for the BOP (Base of the Pyramid), and stove maintenance services.  Unique to this project, and very well received by the households, is the creation of household income from the sales of charcoal byproducts produced in the stove while cooking.  Similar results should be possible in other communities in developing societies.

*********************

Speaking personally, I have wanted this type of result for many many years.  I thank my co-authors for making it happen.  Now we can look forward to replications and variations of this study to provide the quality of TLUD gasifier stoves wherever needed around the world.

Paul

-- 
Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu <mailto:psanders at ilstu.edu> 
Skype:   paultlud    Phone: +1-309-452-7072 <tel:%2B1-309-452-7072> 
Website:  www.drtlud.com <http://www.drtlud.com> 

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